yuqi1129 commented on code in PR #6059:
URL: https://github.com/apache/gravitino/pull/6059#discussion_r1913094052
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docs/hadoop-catalog-with-gcs.md:
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+---
+title: "Hadoop catalog with GCS"
+slug: /hadoop-catalog-with-gcs
+date: 2024-01-03
+keyword: Hadoop catalog GCS
+license: "This software is licensed under the Apache License version 2."
+---
+
+This document describes how to configure a Hadoop catalog with GCS.
+
+## Prerequisites
+To set up a Hadoop catalog with OSS, follow these steps:
+
+1. Download the
[`gravitino-gcp-bundle-${gravitino-version}.jar`](https://mvnrepository.com/artifact/org.apache.gravitino/gravitino-gcp-bundle)
file.
+2. Place the downloaded file into the Gravitino Hadoop catalog classpath at
`${GRAVITINO_HOME}/catalogs/hadoop/libs/`.
+3. Start the Gravitino server by running the following command:
+
+```bash
+$ bin/gravitino-server.sh start
+```
+Once the server is up and running, you can proceed to configure the Hadoop
catalog with GCS. In the rest of this document we will use
`http://localhost:8090` as the Gravitino server URL, please replace it with
your actual server URL.
+
+## Configurations for creating a Hadoop catalog with GCS
+
+### Configurations for a GCS Hadoop catalog
+
+Apart from configurations mentioned in
[Hadoop-catalog-catalog-configuration](./hadoop-catalog.md#catalog-properties),
the following properties are required to configure a Hadoop catalog with GCS:
+
+| Configuration item | Description
| Default value | Required | Since version |
+|-------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------|----------|------------------|
+| `filesystem-providers` | The file system providers to add. Set it to
`gcs` if it's a GCS fileset, a comma separated string that contains `gcs` like
`gcs,s3` to support multiple kinds of fileset including `gcs`.
| (none) | Yes | 0.7.0-incubating |
+| `default-filesystem-provider` | The name default filesystem providers of
this Hadoop catalog if users do not specify the scheme in the URI. Default
value is `builtin-local`, for GCS, if we set this value, we can omit the prefix
'gs://' in the location. | `builtin-local` | No | 0.7.0-incubating |
+| `gcs-service-account-file` | The path of GCS service account JSON file.
| (none) | Yes | 0.7.0-incubating |
+
+### Configurations for a schema
+
+Refer to [Schema configurations](./hadoop-catalog.md#schema-properties) for
more details.
+
+### Configurations for a fileset
+
+Refer to [Fileset configurations](./hadoop-catalog.md#fileset-properties) for
more details.
+
+## Example of creating Hadoop catalog with GCS
+
+This section will show you how to use the Hadoop catalog with GCS in
Gravitino, including detailed examples.
+
+### Create a Hadoop catalog with GCS
+
+First, you need to create a Hadoop catalog with GCS. The following example
shows how to create a Hadoop catalog with GCS:
+
+<Tabs groupId="language" queryString>
+<TabItem value="shell" label="Shell">
+
+```shell
+curl -X POST -H "Accept: application/vnd.gravitino.v1+json" \
+-H "Content-Type: application/json" -d '{
+ "name": "test_catalog",
+ "type": "FILESET",
+ "comment": "This is a GCS fileset catalog",
+ "provider": "hadoop",
+ "properties": {
+ "location": "gs://bucket/root",
+ "gcs-service-account-file": "path_of_gcs_service_account_file",
+ "filesystem-providers": "gcs"
+ }
+}' http://localhost:8090/api/metalakes/metalake/catalogs
+```
+
+</TabItem>
+<TabItem value="java" label="Java">
+
+```java
+GravitinoClient gravitinoClient = GravitinoClient
+ .builder("http://localhost:8090";)
+ .withMetalake("metalake")
+ .build();
+
+gcsProperties = ImmutableMap.<String, String>builder()
+ .put("location", "gs://bucket/root")
+ .put("gcs-service-account-file", "path_of_gcs_service_account_file")
+ .put("filesystem-providers", "gcs")
+ .build();
+
+Catalog gcsCatalog = gravitinoClient.createCatalog("test_catalog",
+ Type.FILESET,
+ "hadoop", // provider, Gravitino only supports "hadoop" for now.
+ "This is a GCS fileset catalog",
+ gcsProperties);
Review Comment:
I have used 4 spaces as the indentation for all Java examples.
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